*{
    margin:0;
    padding:0;
    text-decoration: none;
}
body{
    font-family: Arial, Helvetica, sans-serif;
    background-color: #1c1c1c;
    color: white;
}
.login h1{
    text-align: center;
    margin-top: 10%;
}
a{
    color: white;
}
input[type=text] {
    border: 0 none;
    outline: 0;
    box-shadow: 0 0 0 0;
    color: white;
    background-color: #1c1c1c;
    border-bottom: 2px solid yellow;
    font-size: 20px;
    margin-top: 1.5%;
}
input::placeholder{
    color: white;
}
input[type=password] {
    border: 0 none;
    outline: 0;
    box-shadow: 0 0 0 0;
    color: white;
    background-color: #1c1c1c;
    border-bottom: 2px solid yellow;
    font-size: 20px;
    margin-top: 1.5%;
}
button{
    margin-top: 30px;
    font-size: 20px;
    width: 250px;
    height: 40px;
    background:#1c1c1c;
    border: 1px solid yellow;
}
button:hover{
    transition: 2s;
    background:yellow;
    color: black;
}
@media screen and (min-width:320px) and (max-width:999px) {
    .login h1{
        margin-top: 50%;
    }
    input[type=text] {
        margin-top: 2.5%;
    }
    input[type=password] {
        margin-top:8%;
    }
}